On the base of analyzing the character and structure of the point, line, area symbols, a data structure of map symbol base which serves the symbolized output in digital mapping is put forward.
论述了在数字制图环境下地图输出的特点，在分析了地图上点、线、面符号特征和构造原理的基础上，提出了一种用于数字地图符号化输出的地图符号库数据结构。
The Map Symbol base System is one of the indispensable base functions in Electronic Map System.
地图符号库系统是电子地图系统中不可缺少的功能模块之一。
Considering the demand of embedded system, this paper designs and realizes a Map Symbol Base for VNS specially.
结合嵌入式系统的要求，设计并实现了适合嵌入式车辆导航系统的地图符号库。
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